package servlet;

import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


// 注解
@WebServlet(urlPatterns = "/delete")
public class DeleteUserServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        UserService userService = new UserServiceImpl();
        // 设置请求字符
        req.setCharacterEncoding("UTF-8");
        // 拿到网页传递过来的用户名和密码
        String sid = req.getParameter("id");

        Integer id = Integer.parseInt(sid);

        // 根据id查询用户信息
        int result = userService.deleteUserById(id);

        if (result > 0) {
            // 重定向到查询所有用户的页面
            resp.sendRedirect("user");
        }

    }
}
